Colleagues and students have paid tribute to the much-loved gardener, who had been at the institute for 35 years.
Read details of the duke's life and find out what else is planned in Stratford to mark his passing.
Callum Haden has died at the age of just 16 after being diagnosed with a malignant brain tumour
Funeral cortege passed by the Shipston Medical Centre so colleagues and patients could say farewell
Dr Sue Pritchard passed away following cancer diagnosis
Rod Ousbey was an expert carriage builder and driver who died on Christmas Day. His brother Clive pays tribute.
David Beacham, owner of Coiffure by David, has died aged 86
The former Stratford College student died just before Christmas.